All language subtitles for 09. Using a Corner Pin and Edge Blur for Screen Replacement

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These are the user uploaded subtitles that are being translated: 1 00:00:03,157 --> 00:00:04,080 In this lesson, 2 00:00:04,080 --> 00:00:14,157 we're going to use a corner pin and an edge blur to replace the screen. 3 00:00:14,157 --> 00:00:16,464 OK, so in our last lesson, 4 00:00:16,464 --> 00:00:21,338 I challenged you to try to get Track 2 and 3 to match 5 00:00:21,338 --> 00:00:23,156 up perfectly with your corners. 6 00:00:23,157 --> 00:00:26,157 So I've gone ahead and done that in between lessons. 7 00:00:26,157 --> 00:00:28,233 If you didn't get a chance to do that, 8 00:00:28,233 --> 00:00:31,702 then you can just pick up here where we are starting 9 00:00:31,702 --> 00:00:35,157 at 09_begin in your project files. 10 00:00:35,157 --> 00:00:35,611 OK, 11 00:00:35,611 --> 00:00:40,907 so now we're ready to introduce the image that we want to 12 00:00:40,907 --> 00:00:43,157 track along with these four points. 13 00:00:43,157 --> 00:00:47,156 So go ahead and grab your Reference Files folder. 14 00:00:47,157 --> 00:00:50,157 And we're going to grab the rotating vector city. 15 00:00:50,157 --> 00:00:55,157 So go ahead and just drop that onto your timeline. 16 00:00:55,157 --> 00:00:59,157 OK, so I can kind of zoom back here a little bit. 17 00:00:59,157 --> 00:01:04,490 And you'll see that the rotating city I have is only 640 by 360, 18 00:01:04,490 --> 00:01:07,156 instead of the 1280 by 720. 19 00:01:07,157 --> 00:01:09,695 So that's going to be a little bit smaller than the 20 00:01:09,695 --> 00:01:13,156 shot that we were working with before. 21 00:01:13,157 --> 00:01:15,157 So that's going to present a little bit of an issue that 22 00:01:15,157 --> 00:01:17,157 we'll be able to clear up later on. 23 00:01:17,157 --> 00:01:23,157 But first of all, what we need to do is to add a Corner Pin node. 24 00:01:23,157 --> 00:01:29,712 So that's basically what's going to distort this data into 25 00:01:29,712 --> 00:01:34,157 fitting onto the area that we've tracked here. 26 00:01:34,157 --> 00:01:38,541 So basically, all you have to do is just have that Read node selected, 27 00:01:38,541 --> 00:01:42,003 then hit the Tab key and type in "corner. 28 00:01:42,003 --> 00:01:45,157 " And you see Corner Pin comes up. 29 00:01:45,157 --> 00:01:47,157 And that's going to give you that. 30 00:01:47,157 --> 00:01:50,157 Now what if I want to look at these two things together? 31 00:01:50,157 --> 00:01:56,772 I need to use a Merge node to be able to view the Read node of my 32 00:01:56,772 --> 00:02:00,156 vector city on top of the Read node of my footage. 33 00:02:00,157 --> 00:02:05,490 So let's just hover over our Node graph, hit the Tab key, and type in "merge. 34 00:02:05,490 --> 00:02:07,490 " I didn't have anything selected, 35 00:02:07,490 --> 00:02:11,157 so it just dropped it right there onto the node graph. 36 00:02:11,157 --> 00:02:12,490 And if you remember, the < 00:02:12,934 B Pipe? 38 00:02:12,934 --> 00:02:14,429 >> is always going to be your background, 39 00:02:14,429 --> 00:02:17,557 so we can plug that into Tracker 2 that has all the 40 00:02:17,557 --> 00:02:20,157 background information over here of our plate. 41 00:02:20,157 --> 00:02:24,357 And then our foreground is going to be plugged into the Corner Pin node, 42 00:02:24,357 --> 00:02:29,157 which will be all of the foreground information in a moment. 43 00:02:29,157 --> 00:02:30,490 So right now, 44 00:02:30,490 --> 00:02:35,157 we've got the foreground information right here with the Corner Pin node. 45 00:02:35,157 --> 00:02:38,157 But it's not being distorted yet. 46 00:02:38,157 --> 00:02:39,657 Now, I want to view the Merge, 47 00:02:39,657 --> 00:02:43,156 so I'm going to go ahead and drop that Viewer node onto the Merge. 48 00:02:43,157 --> 00:02:48,387 So it re-sizes this for me, so that I'm seeing that full size, 49 00:02:48,387 --> 00:02:51,156 that I see how this is just kind of stuck down here. 50 00:02:51,157 --> 00:02:54,429 So because that Corner Pin node has been applied, 51 00:02:54,429 --> 00:03:00,157 you see how the 4, 3, 2, 1 is written in the corners. 52 00:03:00,157 --> 00:03:04,157 So basically, this is going to be pinned to Tracker 4. 53 00:03:04,157 --> 00:03:06,156 This will be pinned to Tracker 3. 54 00:03:06,157 --> 00:03:08,157 This corner will be to 2, and this one to 1. 55 00:03:08,157 --> 00:03:11,247 So you can see why it's important that order that I told you 56 00:03:11,247 --> 00:03:16,156 of which corner you want to be the upper, 57 00:03:16,157 --> 00:03:20,823 left-hand corner of your image is the one that you want to be Track 4, 58 00:03:20,823 --> 00:03:21,157 basically. 59 00:03:21,157 --> 00:03:24,157 That's just how the Corner Pin node works. 60 00:03:24,157 --> 00:03:25,066 So again, 61 00:03:25,066 --> 00:03:29,823 we're going to want to be hooking some data together from 62 00:03:29,823 --> 00:03:32,157 our Tracker to our Corner Pin node. 63 00:03:32,157 --> 00:03:36,157 So what I'm going to do is just close out of the Merge node for a second. 64 00:03:36,157 --> 00:03:39,157 And we don't even need the Tracker node open any more either. 65 00:03:39,157 --> 00:03:41,157 We only need the Corner Pin for now. 66 00:03:41,157 --> 00:03:44,299 And all you have to do is right-click where it says < 00:03:44,871 2, 1? 68 00:03:44,871 --> 00:03:47,907 >> and tell to link to-- let's just pull this over here, 69 00:03:47,907 --> 00:03:50,532 just so you can see everything-- right-click, 70 00:03:50,532 --> 00:03:53,157 go to Link To, choose Tracker 2. 71 00:03:53,157 --> 00:03:55,157 And then because it says < 00:03:55,823 2, 1? 73 00:03:55,823 --> 00:04:00,157 >> you'll choose Track 1, Tracker 2, Track 1. 74 00:04:00,157 --> 00:04:04,657 And you can see that over here-- I'm just middle-clicking-- that's 75 00:04:04,657 --> 00:04:09,157 been kind of sucked onto that Track 1 point. 76 00:04:09,157 --> 00:04:11,156 Then let's come over here and do the same for Track 2. 77 00:04:11,157 --> 00:04:17,156 So right-click over that animation menu, go to Link To, Tracker 2, Track 2. 78 00:04:17,156 --> 00:04:20,156 And then the same for 3 and 4. 79 00:04:20,156 --> 00:04:25,156 Pretty straightforward, once you get the hang of it. 80 00:04:25,157 --> 00:04:29,156 Track 4, and that looks like that is in place. 81 00:04:29,157 --> 00:04:30,157 Now sometimes, 82 00:04:30,157 --> 00:04:35,157 you're going to have a problem where your image does 83 00:04:35,157 --> 00:04:38,157 not perfectly sit on your phone. 84 00:04:38,157 --> 00:04:45,157 So it looks like ours is doing a pretty good job of snapping into that place. 85 00:04:45,157 --> 00:04:49,156 And the reason why it's doing that is because of what we had selected. 86 00:04:49,157 --> 00:04:53,157 When we dropped in the Corner Pin node, we had the Read node selected. 87 00:04:53,157 --> 00:04:57,247 But if you didn't, and then you simply hooked the Corner Pin node in, 88 00:04:57,247 --> 00:05:00,157 it might not have the right center point. 89 00:05:00,157 --> 00:05:02,157 And so you're going to have a problem. 90 00:05:02,157 --> 00:05:04,556 But all you have to do is come over here to that 91 00:05:04,556 --> 00:05:07,157 From tab and click Set To Input. 92 00:05:07,157 --> 00:05:10,156 And that's going to snap it back into place. 93 00:05:10,157 --> 00:05:13,156 So if you just did what I did and maybe you skipped that 94 00:05:13,157 --> 00:05:18,157 step of having the Read node selected, it can happen anybody. 95 00:05:18,157 --> 00:05:20,156 But it will make your image look a little weird. 96 00:05:20,157 --> 00:05:21,310 So if you're having trouble, 97 00:05:21,310 --> 00:05:26,157 if you do this on your own and your image doesn't automatically snap into place, 98 00:05:26,157 --> 00:05:27,975 try clicking Set To Input, and just see what happens, 99 00:05:27,975 --> 00:05:31,156 once you have these linked up and it still doesn't look right. 100 00:05:31,157 --> 00:05:35,157 OK, so now we have a pretty awesome looking image here. 101 00:05:35,157 --> 00:05:38,618 I mean, there's a little bit to be desired, 102 00:05:38,618 --> 00:05:41,156 as far as the way the screen is integrated. 103 00:05:41,157 --> 00:05:43,156 But we'll be able to fix that in a moment. 104 00:05:43,157 --> 00:05:46,541 But it really looks like this video is on her screen, 105 00:05:46,541 --> 00:05:50,156 as far as the way that it's deforming to those points. 106 00:05:50,157 --> 00:05:54,387 Now there's a few things that we can change to make 107 00:05:54,387 --> 00:05:56,157 it a little bit better integrated. 108 00:05:56,157 --> 00:06:00,156 So one of the first things I want to do is to add an edge blur. 109 00:06:00,157 --> 00:06:03,849 And that's just going to give this edge a little bit less 110 00:06:03,849 --> 00:06:06,156 of that hardness that you see there. 111 00:06:06,157 --> 00:06:10,657 And most screens don't project all the way to the very edge of the screen, 112 00:06:10,657 --> 00:06:12,157 so you get a little bit of black here. 113 00:06:12,157 --> 00:06:15,157 Now we've already gotten that, just because of the way we've tracked it. 114 00:06:15,157 --> 00:06:19,156 But adding edge blur is going to help even more. 115 00:06:19,157 --> 00:06:23,156 So we want that edge blur to happen after the Corner Pin, 116 00:06:23,157 --> 00:06:25,156 and before the Merge node. 117 00:06:25,157 --> 00:06:26,157 So let's go ahead. 118 00:06:26,157 --> 00:06:32,490 We'll just hover over this area here, hit the Tab key, and type in "edge. 119 00:06:32,490 --> 00:06:35,156 " Edge blur is going to pop up. 120 00:06:35,157 --> 00:06:40,157 And we'll just pop that in between the Merge and the Corner Pin node. 121 00:06:40,157 --> 00:06:43,157 And you can pull that over there. 122 00:06:43,157 --> 00:06:46,657 And then, let's just see what happens if we pull this all the way up, 123 00:06:46,657 --> 00:06:48,157 what it does. 124 00:06:48,157 --> 00:06:54,247 So I like to play with the slider to figure out how far I can push it, 125 00:06:54,247 --> 00:06:57,157 and then just figure out a good area. 126 00:06:57,157 --> 00:06:59,490 So it looks like, for this one, 127 00:06:59,490 --> 00:07:03,157 probably somewhere between 4 and 5 is a good place. 128 00:07:03,157 --> 00:07:07,157 If you feel like it's too much, maybe take it down between 3 and 4. 129 00:07:07,157 --> 00:07:08,990 And that's just going to help this area here to feel 130 00:07:08,990 --> 00:07:14,157 a little bit better integrated. 131 00:07:14,157 --> 00:07:15,695 Now in our next lesson, 132 00:07:15,695 --> 00:07:20,657 we're going to learn how to make it look even better integrated by 133 00:07:20,657 --> 00:07:26,157 reintroducing the reflections from our screen into our composite and changing 134 00:07:26,157 --> 00:07:30,157 a few other properties just to really make this shine. 135 00:07:30,157 --> 00:07:31,156 So stick around. 136 00:07:31,157 --> 00:07:40,157 And we're going to finish up the polish for this little shot in our next lesson. 11732

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